nrf.readPayload({width:this._size}, function (e,d) {
if (e) this.emit('error', e);
else this._wantsRead = this.push(d);
nrf._checkStatus(false); // see footnote c, p.63
}.bind(this));
PxX.prototype._read = function () {
this._wantsRead = true;
nrf._checkStatus(false);
};
else if (d.RX_DR && d.RX_P_NO === 0x07) setTimeout(function () {
// HACK: chip seems to assert RX_DR a while before setting RX_P_NO, so poll if necessary
// TODO: this may actually just happen until we reset RX_DR (maybe FLUSH_RX or similar unsyncs?)
nrf._checkStatus(false);
}, 0);